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Today's students need to know about climate change-- what it is, why it is occurring, how it will impact them, and what can be done about it. Heat-trapping gas emissions from power plants, vehicles,...

These Landsat images show Kenya’s Masai Mara Reserve on December 4, 1994, a year with normal rainfall, and November 27, 2009, a year when the rains failed and a severe drought overtook the land. The...